/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */

package org.apache.eagle.topology.resolver.impl;

import org.apache.eagle.topology.resolver.TopologyRackResolver;

public class DefaultTopologyRackResolver implements TopologyRackResolver {

    private static final String DEFAULT_RACK_NAME = "default-rack";
    private String rack;

    public DefaultTopologyRackResolver() {
        this.rack = DEFAULT_RACK_NAME;
    }

    public DefaultTopologyRackResolver(String rack) {
        this.rack = rack;
    }

    /**
     * If topology.script.file.name is unset, then the rack name for all hostnames is default-rack
     * @param hostname
     * @return rack
     */
    @Override
    public String resolve(String hostname) {
        return rack;
    }
}
